TMS320LF2403APAGS TI C2000 Automotive 16-Bit DSC 40MHz 64KB Flash 6-Ch PWM ADC CAN TQFP-64

TMS320LF2403APAGS Product Overview

The TMS320LF2403APAGS is a 16-bit fixed-point digital signal controller (DSC) from Texas Instruments, built around the C2000 DSP core. Operating at 40MHz (40 MIPS), the TMS320LF2403APAGS comes in a 64-lead TQFP (PAG) package and is rated for the automotive temperature range of -40°C to +125°C. The TMS320LF2403APAGS integrates 32K×16 Flash (64KB) and 2K×16 SARAM (4KB), providing reliable storage for real-time motor control and power conversion firmware. The TMS320LF2403APAGS's control peripherals are centered on a single event manager (EVA) that generates three complementary PWM pairs (six PWM outputs) with programmable dead-time and fault protection. Three capture units and two quadrature encoder interfaces (QEP) enable closed-loop position and speed control for a three-phase motor. The TMS320LF2403APAGS's analog front-end includes a 10-bit ADC with eight input channels and a minimum conversion time of 500ns (2MSPS), supporting dual simultaneous sampling. Communication interfaces consist of a CAN 2.0B module, a serial communication interface (SCI), and a high-speed SPI, allowing easy connection to in-vehicle networks or industrial fieldbuses. The TMS320LF2403APAGS is fully supported by TI's Code Composer Studio IDE and C2000 software libraries, accelerating the development of cost-effective motion control and digital power solutions.

TMS320LF2403APAGS Core Features

Processor Core: The TMS320LF2403APAGS features a 16-bit C2000 fixed-point DSP core, 40MHz (40 MIPS), single-cycle 16×16 MAC

On-Chip Memory: The TMS320LF2403APAGS integrates 32K×16 Flash (64KB), 2K×16 SARAM (4KB), 1K×16 Boot ROM

Event Manager (EVA): The TMS320LF2403APAGS provides 3 full compare units, 3 complementary PWM pairs (6 PWM outputs), programmable dead-time & fault; 2 GP timers, 3 capture units, 2 QEP

Analog Front-End: The TMS320LF2403APAGS offers a 10-bit ADC, 8 channels, 500ns conversion (2MSPS), dual simultaneous sampling

Communication: The TMS320LF2403APAGS is equipped with 1× CAN 2.0B, 1× SCI (UART), 1× SPI

System: The TMS320LF2403APAGS features on-chip PLL, watchdog timer, power management, up to 40 GPIO

Temperature Range: The TMS320LF2403APAGS operates in automotive temperature range, -40°C to +125°C

Package: The TMS320LF2403APAGS comes in a 64-lead TQFP (PAG), 0.8mm pitch

TMS320LF2403APAGS Applications

Automotive: The TMS320LF2403APAGS is suitable for engine cooling fan / pump drives, throttle control, small DC/DC converters

Industrial Motor Control: The TMS320LF2403APAGS enables single-axis servo drives, stepper motor controllers, textile & packaging machinery

Digital Power: The TMS320LF2403APAGS can be used in digital DC/DC modules, inverter welders, small-power inverters

General Embedded Control: The TMS320LF2403APAGS excels in sensor control, industrial automation nodes requiring high-temperature reliability

TMS320LF2403APAGS Key Advantages

Proven 16-Bit Architecture: The TMS320LF2403APAGS delivers an efficient C2000 DSP core at 40MHz, executing PID, FOC, and other real-time algorithms quickly, with full code compatibility across the LF240x family for easy migration.

Compact Motor Control: The TMS320LF2403APAGS provides a single event manager with six complementary PWM outputs and encoder interfaces, enabling full digital control of one three-phase motor while reducing system BOM cost.

Integrated CAN: The TMS320LF2403APAGS includes an on-chip CAN 2.0B controller, allowing direct connection to automotive buses or industrial CAN networks without an extra controller chip, simplifying design.

Automotive-Grade Temperature: The TMS320LF2403APAGS operates reliably from -40°C to +125°C, ensuring long-term stability in engine compartments and harsh factory environments.

Streamlined Package: The TMS320LF2403APAGS comes in a 64-lead TQFP that combines sufficient I/O with good solderability and visual inspectability, ideal for cost-sensitive products.

Complete Tools: The TMS320LF2403APAGS is fully compatible with Code Composer Studio IDE and C2000 reference designs, allowing developers to leverage existing software and JTAG debug probes to jump-start projects.

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FAQ

1. What do the “A” and “S” suffixes mean?
   
   • In the TMS320LF2403APAGS, “A” denotes the LF240xA architecture. “S” indicates the automotive temperature range of -40°C to +125°C, suitable for engine compartments and high-temperature industrial applications.
2. How does the TMS320LF2403APAGS differ from the TMS320LF2407A?
   
   • The TMS320LF2403APAGS has one event manager (EVA), while the LF2407A features EVA and EVB for dual-motor control. Memory is also smaller (64KB Flash vs. 128KB, 8 ADC channels vs. 16) and the TMS320LF2403APAGS comes in a compact 64-lead TQFP package.
3. What motor types can the TMS320LF2403APAGS control?
   
   • The TMS320LF2403APAGS's six complementary PWM outputs can drive a three-phase BLDC, PMSM, or AC induction motor, as well as stepper or DC motors when appropriately configured. The built-in QEP supports closed-loop position/speed control.
4. Is the 10-bit ADC adequate for current-loop control?
   
   • The TMS320LF2403APAGS's 10-bit ADC, with a 500ns conversion time and dual simultaneous sampling, is well suited for current loops at moderate switching frequencies (e.g., 10-20kHz), widely used in appliance and automotive auxiliary motor drives.
5. Does the CAN interface require an external transceiver?
   
   • Yes, the TMS320LF2403APAGS's integrated CAN controller provides logic-level signals, so an external CAN transceiver (e.g., SN65HVD230) is needed to connect to a physical bus.
6. What development tools are needed?
   
   • For the TMS320LF2403APAGS, TI's free Code Composer Studio (CCS) IDE and an XDS100/XDS200 JTAG emulator are recommended. TI also provides motor control reference designs for the LF240x family.
7. Can the TMS320LF2403APAGS run a FOC algorithm?
   
   • Yes, the TMS320LF2403APAGS's 64KB Flash and 4KB SRAM can accommodate a complete sensorless or sensored FOC implementation, including PI controllers, coordinate transforms, and SVPWM generation with high efficiency.
8. What boot modes are supported?
   
   • The TMS320LF2403APAGS can boot from internal Flash or external memory, configured by specific boot-mode pins for flexible system design.
9. Is the 64-lead TQFP package easy to hand-solder?
   
   • The TMS320LF2403APAGS's 0.8mm pitch TQFP-64 is relatively easy to solder using standard reflow or manual drag-soldering with flux; exposed leads simplify inspection and rework.
10. What are the upgrade options for higher performance?
    
    • For upgrades from the TMS320LF2403APAGS, consider TI's TMS320F280x or TMS320F2833x families, which feature a faster 32-bit C28x core, higher-resolution ADCs, additional PWM channels, and larger memory.